6222981 has 4 divisors (see below), whose sum is σ = 8297312. Its totient is φ = 4148652.

The previous prime is 6222977. The next prime is 6222991. The reversal of 6222981 is 1892226.

6222981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6222981 - 2² = 6222977 is a prime.

It is a super-2 number, since 2×6222981² = 77450985052722, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

6222981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6222991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037161 + ... + 1037166.

It is an arithmetic number, because the mean of its divisors is an integer number (2074328).

Almost surely, 2^6222981 is an apocalyptic number.

It is an amenable number.

6222981 is a deficient number, since it is larger than the sum of its proper divisors (2074331).

6222981 is a wasteful number, since it uses less digits than its factorization.

6222981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074330.

The product of its digits is 3456, while the sum is 30.

The square root of 6222981 is about 2494.5903471312. The cubic root of 6222981 is about 183.9357545871.

The spelling of 6222981 in words is "six million, two hundred twenty-two thousand, nine hundred eighty-one".